"Zach is using psychological principles and research methods to determine methods for athletes to reach their peak performance, while Anna is utilizing psychological principles in developing ways to alleviate traffic jams in growing cities. Both of these psychologists are working in the field known as psychology."

a. basic research
b. forensic
c. comparative
d. applied

Applied psychology

Explanation:

Zach and Anna both working in applied psychology as Applied psychology refer to imply all theoretical and principal knowledge to solve everyday problem of human and animal behavior. Simply use all strategist and techniques, theories in experiment. research to conduct ad observe practical  psychology of human and animal experience.

Both of these Psychologist are working in the field known as APPLIED PSYCHOLOGY.

Explanation: Applied Psychology can be defined as the putting into practical use the principles of Psychology.

Applied psychology involves putting practical research into action. Just like Zach and Anna in the question, they Implement practical research methods to real life situations like improving performance for athletes and alleviating traffic jams in cities respectively.

there are conflicting perceptions. what cannot be denied is that despite a long history of discrimination, they finally chose to bow out in grace and handed over power to the majority. it was a painful experience for them to part with their prerogatives and some chose to leave the country. however, they did decide to bite the bullet and go through the process with minimum obstructions.

presently, whites are still a force to reckon with. they are well educated, have technical and business expertise, they understand imperatives of good governance and are responsible for keeping south africa connected with developed countries. despite a bitter history, they are useful team members of the south african team.